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914191939986 = 231311720409487
BaseRepresentation
bin11010100110110100001…
…01011111100110010010
310020101200121102022222020
431103122011133212102
5104434231114034421
61535550213552310
7123022346163603
oct15233205374622
93211617368866
10914191939986
11322785576416
12129215045696
1368291a8c730
1432366183daa
1518ba8425dc6
hexd4da15f992

914191939986 has 16 divisors (see below), whose sum is σ = 1969028793984. Its totient is φ = 281289827664.

The previous prime is 914191939981. The next prime is 914191939987. The reversal of 914191939986 is 689939191419.

It is a self number, because there is not a number n which added to its sum of digits gives 914191939986.

It is not an unprimeable number, because it can be changed into a prime (914191939981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5860204666 + ... + 5860204821.

It is an arithmetic number, because the mean of its divisors is an integer number (123064299624).

Almost surely, 2914191939986 is an apocalyptic number.

914191939986 is an abundant number, since it is smaller than the sum of its proper divisors (1054836853998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

914191939986 is a wasteful number, since it uses less digits than its factorization.

914191939986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11720409505.

The product of its digits is 34012224, while the sum is 69.

The spelling of 914191939986 in words is "nine hundred fourteen billion, one hundred ninety-one million, nine hundred thirty-nine thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 13 26 39 78 11720409487 23440818974 35161228461 70322456922 152365323331 304730646662 457095969993 914191939986